The Washer,flat, cataloged under National Stock Number 5310-01-549-4910, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is American Apex Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | American Apex Corporation (CAGE 04CK0); G3 Systems Limited (CAGE KC3S1) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-549-4910 |
| Primary Part Number | 50142 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | American Apex Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 50142 PRIMARY | American Apex Corporation (USA) |
| G28.404.000.5230 | G3 Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| 10201776 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-549-4910 is a Washer,flat, manufactured by American Apex Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-549-4910 has 2 manufacturer part numbers on file: 50142 (American Apex Corporation), G28.404.000.5230 (G3 Systems Limited).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.